But why do some clusters collapse where others survive? What’s the long term impact on Dundee from losing that many staff, and what are the prospects for those let go?

Knowledge is powerAt the heart of the industry’s biggest clusters – Seattle, Montreal, Vancouver and San Francisco – are giant studios training talent in the latest development technology and processes.

Since most of these powerhouses are publisher-owned or are publishers in their own right, they typically have the scale to attract talent from afar, which in turn attracts other companies.

When acquired, these studios close the virtuous circle by delivering cutting-edge creativity and technology back into publisher studios, whose innovation is commonly evolutionary, not revolutionary.

Our industry needs the balance and interplay between publishers and independents. They provide services, a talent pool and business opportunities to each other, as well as trigger subtler interactions between creative business people.

Many clusters have grown and benefited from cross-fertilisation from adjacent industries, most notably film in Vancouver, and Silicon Valley in San Francisco.

London now has numerous games companies from new media agency-land, making it the UK’s largest cluster by number of studios and headcount.Come togetherLarge publisher studios in your cluster are the best defence against shocks like Realtime Worlds, whose demise robbed Dundee of over 60 per cent of its full time staff.

Many of these newly available top-flight developers are being scooped up by other studios, but the UK overall is still losing headcount.

Dundee itself now has under 160 development staff in full time roles in twenty-odd small-to-medium sized companies, which no longer enjoy spill-overs from a well-funded giant studio.

There’s no doubt that the cluster would be in much deeper trouble without Abertay, which provides a degree of safe haven during storms, housing developers and providing funding and staff.

Dundee’s local funding environment, while better than most due to local benefactors and the new prototype fund, isn’t quite at the level to trigger multiple new start-ups.

Finance is the other key to many clusters’ success. This financing is not universally sourced from public bodies. Canada may pump-prime to attract global publisher studios but the privately funded clusters of Los Angeles, Hamburg and San Francisco arguably create more long-term value by incubating indigenous studios.

Whether clusters and newly redundant staff bounce back from such redundancy shocks is driven too by timing. During the last collapse in developer numbers in the early-to-mid 2000s, many staff, with fewer jobs to go around, left the UK or the industry altogether.

Three-to-four years ago studios were growing but faced recruitment shortages, so many released staff were absorbed by companies relieved to find experienced people. Since 2008, UK-based studios have tightened their belts, shedding nearly nine per cent of the UK’s full-time developer headcount.

What about these new routes to markets with lower barriers to entry? Let’s not overstate it: perhaps ten per cent of UK staff made redundant since 2008 went on to found companies. But, since then we’ve tracked well over one hundred start-up studios in the UK, whose fate correlates strongly with platform choice.

iPhone companies have mostly struggled while browser game studios have thrived. The North East lost many start-ups which almost exclusively chose iPhone, but failed to find a market. Start-ups in the South East have tended towards Flash and Facebook, with a greater proportion surviving, so far.

After the RTW recruitment auction, a minority may leave gaming, but in a global industry with a highly mobile workforce, many will use this as the opportunity to work for overseas games companies.

Data is hard to gather, but TIGA’s late 2009 survey found that half of studios’ lost jobs went overseas, 72 per cent of them to Canada.

Perhaps globalisation can rescue such staff. I’m as unhappy with the UK’s decline as anyone but recognise that looking out for number one may mean taking our focus overseas.What will happen to Dundee? It may be down but it’s not out.

Local studios like Proper Games, Tag, Dynamo and Digital Goldfish are still going strong, and with Rockstar down the road, Scotland is still a top games development destination.